Unmanned helicopter (crossed twin-rotor)

Abstract

1. The name of the design product: unmanned helicopter (cross double rotor). 2. The use of the design product: unmanned aerial vehicle for performing flight tasks such as surveying, extinguishing, search and rescue investigation, border patrol, fire rescue, material transportation, communication relay, forest fire prevention monitoring, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

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